101220120222197 has 2 divisors, whose sum is σ = 101220120222198. Its totient is φ = 101220120222196.

The previous prime is 101220120222163. The next prime is 101220120222227. The reversal of 101220120222197 is 791222021022101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87371905122436 + 13848215099761 = 9347294^2 + 3721319^2 .

It is a cyclic number.

It is not a de Polignac number, because 101220120222197 - 2¹⁰ = 101220120221173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101220120222157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50610060111098 + 50610060111099.

It is an arithmetic number, because the mean of its divisors is an integer number (50610060111099).

Almost surely, 2^{101220120222197} is an apocalyptic number.

It is an amenable number.

101220120222197 is a deficient number, since it is larger than the sum of its proper divisors (1).

101220120222197 is an equidigital number, since it uses as much as digits as its factorization.

101220120222197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 32.

Adding to 101220120222197 its reverse (791222021022101), we get a palindrome (892442141244298).

The spelling of 101220120222197 in words is "one hundred one trillion, two hundred twenty billion, one hundred twenty million, two hundred twenty-two thousand, one hundred ninety-seven".